Men are less likely to talk than women with 54% of women having had a conversation compared to 37% of men.
Tube back to normal after strike
Services resume following Boxing Day strike
Tube services are running back as normal following Monday's 24 hour strike by drivers from the Aslef Union.
Transport for London says more services operated than expected on Boxing Day, but there was still significant disruption.
More walkouts are planned for the New Year in the row over extra bank holiday pay.
The strike came after a High Court judge concluded that it was lawful and could go ahead following a legal challenge by London Underground.
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A man has been fined £1,800 for flying drones over Parliament, near Buckingham Palace and over football stadiums.
Government to investigate after some restaurants accused of withholding tips
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